Beater blades



Nov. 27, 1956 s". ELLIS BEATER BLADES Filed March 9, 1954 and! R O T N EV m TEPHEN ELL/S ATTORNEY United States Patent BEATER BLADES StephenEllis, Newark, N. 1., assignor of one-half to Adolph E. Ellis, Newark,N. J.

Application March 9, 1954, Serial No. 414,986

4 Claims. (Cl. 259131) This invention relates to beaters for use in thepreparation of food and commonly referred to as egg beaters, as well asmixing apparatus employing beater blades. More particularly, theinvention deals with the blade structure of devices of the kind underconsideration. Still more particularly, the invention deals with thestructure of the blade elements and the arrangement of the elements onewith respect to the other in the pair of blades commonly employed indevices of the kind under consideration.

The novel feature of the invention will be best understood from thefollowing description, when taken together with the accompanyingdrawing, in which certain embodiments of the invention are disclosedand, in which, the separate parts are designated by suitable referencecharacters in each of the views and, in which:

Fig. 1 is a diagrammatic side view of the lower portion of a common typebeater illustrating my improved blade construction.

Figs. 2 and 3 are diagrammatic sectional views on the line 22, 33 ofFig. 1 illustrating the blades in difierent positions from that shown inFig. 1; part of the background showing in each figure being omitted forsake of clarity; and

Fig. 4 is a sectional detailed view on the line 4--4 of Fig. 2.

In illustrating one adaptation and use of my invention, I have shown inFig. 1 of the drawing the lower portion of a conventional type of eggbeater, comprising an elongated frame 10 having a lower crosshead 11 andupwardly extending and slightly converging rods 12 and 13, to the upperends of which are fixed pinions 14 and 15 which mesh with anintermediate drive wheel or gear 16, usually rotated by a hand crank, aswith other devices of this type and kind. The detailed structures of theremainder of the beater are not shown, as they form no part of thepresent invention. As previously stated, the beater blade structure isadapted to any type or kind of heaters, whether manually or power drivenand the present showing, as applied to a manually actuated egg heater,is simply by way of illustration.

Mounted on the rods 12 and 13 are two beater units 17, 17', each unitcomprising two difierently formed blades 18, 18; 19, 19'. The blades 18,18' are similarly formed; whereas, the blades 19, 19' are similarlyformed, but these blades, in mounting the same on the rods 12, 13, areso arranged that the blade 13, for example, meets with the blade 19' asthe blades are rotated in the direction of the arrows X of Fig. 2 of thedrawing. The same arrangement of the blades 18 and 19' is also shown inFig. 3 of the drawing, but at a difierent section through said blades.Each blade is in the form of a flat ribbonlike strip and is usuallyshaped to form a rounded beater end at the lower portion thereof, therounded beater ends of the blades 18, 18 being indicated at 20, 20' andthe rounded ends of the blades 19, 19' are shown at 21, 21'. Instead ofleaving the strips of metal transversely straight in forming the roundedends just referred "ice to, these strips of metal are alternately bentto form alternately arranged and ofiset paddle portions 22, 22 on theblades 18, 18' and correspondingly offset paddle portions 23, 23 on theblades 19, 19'. However, the paddle portions of the blades 18, 18' arearranged oppositely to the alined paddle portions of the blades 19, 19.This opposed relationship of the paddle portions is clearly illustratedin Figs. 2 and 3 of the drawing, which are diagrammatic showings simplyof the cross-section through the paddle portions and omitting thebackground showing for sake of clarity.

It will, thus, be seen that, on the section line 22 taken through theblades 18, 19', the edge of the paddle portion 22, as at '24 extendsoutwardly with respect to the edge 25; whereas on the paddle portion 23,the edge 26 extends inwardly and the edge 27 extends outwardly. However,on the section line 3-3, which is the next adjacent paddle portion ofeach of the blades, the above mentioned condition is reversed. In otherwords, the.- edge 24 now extends inwardly; whereas, the edge 25' extendsoutwardly and the edge 26' extends outwardly; whereas, the edge 27'extends inwardly.

Considering Figs. 2 and 3 of the drawing, it will be understood that, ina normal beater blade construction, the portions of the blade, which arehere identified as the paddle portions 22, 23, are normally at rightangles to side edges of the blades, in other words, the edges, similarto the edges 24 and 25 as an example and what applicant has done is tooffset the blades first inwardly and, then, outwardly so that, intravelling along the curved section of the blade, one paddle portion hasthe edge 24 extending outwardly with respect to the edge 25; whereas,adjacent paddle portions has the edge 24' extending inwardly and theedge 25' outwardly.

The paddle portions referred to result in a greater agitation of themass operated upon by the beater and sets up a greater turbulence so asto more efiectively and quickly produce the desired result, for example,in beating the whites of eggs to bring the egg white to the properconsistency, again, in whipping cream to its proper consistency and alsoin the mixing or beating of any type or kind of preparations. It will beunderstood that the action of the paddles tend to draw the materialworked upon into the center of the blades, as Well as to exert outwardlypressure of the material Working in a direction opposed to that ofanother paddle. The paddle portions of the respective blades are locatedprimarily on the curved portions 20, 20'; 21, 21. However, I provide,one one of the blades of each beater unit, for example, the blades 18,18', a slight paddle portion 28, as noted on the blade 18 in Fig. 4 ofthe drawing. The purpose of this paddle portion is to assert a liftingforce on material which is agitated or beaten by the beater, so as toprevent collection of unbeaten material at the lower portion of acontainer in which the blade is arranged.

For purposes of description, it may be simply said that the pair ofheaters of a beater unit of the char acter described have two pairs ofblades with a dilferent arangement or difierent ofisetting of paddlesthereon, so united on the yoke-shaped beater frame defined by thecrosshead 11 and rods 12 and 13 as to dispose intersecting differentblades with their paddles arranged in opposed relationship to eachother, in the manner which is clearly diagrammatically illustrated inFigs. 2 and 3 of the drawing. The use of the term intersecting isdescriptive of the rounded portions of the blades coming into reasonablyclose proximity to each other, as the beater blade units are rotated, inother words, as the blades 18, 19' approach each other. In thisconnection, it will be understood that, in the diagrammatic showing ofFig. 1, the blades 18, 19 are shown in their flat relationshigfi here rhe l d s 19,18! areshowntint ei edge relationship and, while theillustration of the paddles 22, 23; 22', 23 are diagrammatic,this issimply for sake, of; clarity. to; disclose the; offsetting; ofrthe edge;portions; onewithtrespfictt totheother.

Having, fully described my invention, what I" claim as; new and desiretose'cureby Letters Patent isz 1', A beater: of the character'described,comprising aframe defined-byv a crossheadvand a pair ofconverging rqds,-a beater unit rotatably. mounted on each of: said rods, each unitcomprising; a pair: of blades, the blades of; each unit having rounded:endsw adjacent the crosshead; of said; frame, the rounded ends ofeachblade having ofiset paddle portions, adjacentpaddle'portionsof;eaclr.blade-being-oifsetin opposed. directions, andthe paddle portions: of one-blade in each unit being offset in an;Opposed direction to corresponding horizontally alinedrpaddle portionsof" the other blades of said units.

2.-,A: heaterofthe character described, comprising, a frame defined by acrosshead: and a pair of converging rods a, beater unitrotatably mountedon each of. said rods, eaclr unit comprising aepairf of blades; theblades of;each .unit having rounded. ends adjacent the; crossheadOfjSfiid; frame, the rounded ends ofeach blade having offset paddleportions, adjacent paddle portions of each bladeg-being otfset inopposed directions; the paddle portions-of one blade ineach unit beingofiset in an opposed directionto corresponding horizontally alinedpaddle portions of the other blades of said units, and thearrangementofthe-blades of said units being such as to bring opposed, blades of. saidunits toward each other in: the operation of the heater,

3. Av beater of the character, described, comprising a frame defined bya crosshead and a pair of converging rods; a; beater unit rotatablymounted on each of said rods,veach unitv comprisingapairnoftv blades,the blades of each unit having rounded ends adjacent the crosshead ofsaid frame, the rounded ends of each blade having offset paddleportions, adjacent paddle portions of each blade being ofiset in opposeddirections, the paddle portions of one blade in each unit being offsetin an opposed direction to coresponding horizontall alined paddleportions of the other blades of said units, the arrangement of theblades of said units being such as to bring opposed blades of said unitstoward eachv other in the operation of thebeater, and: the roundedportions of one blade of each unit, adjacent the crosshead of saidframe, having blades creating a lifting function adjacent the crossheadof" the frame: inthe operation of the heater.

4. A blade unit for heaters of the class described, comprising a pair ofblades disposed substantially at rightzanglesto each other, eachblade-having, an enlarged beater, end defined by opposed portions,eachof; the: op posedportions of'the; enlarged beater end of each: blade7 having longitudinally spacedoffset paddle; portions; ad-i jacent:paddle; portions: of; each opposed portion beingoffsetaimopposeddirections to each-other, and the offset ofthe paddleportionsof one enlarged beater end of the unitheingofisetinopposeddirections to correspondingly alined paddle portionsof the, otherenlarged beater-end of said unit.

References Cited in the file of this patent UNITED STATES PATENTS793;142' Merrell June 27, 1905 1,5l9;746- Valerius Dec. 16, 19241,710,417 Goodell' Apr. 23, 1929 1,761,634 Kuck June 3, 1930 2,046,109Dunne-et al. June 30, 1936

